Question

MS-Access数据库

Table: myTable
Field1: ID (COUNTER, which is autoincrement in Access)
Field2: SURNAME (VARCHAR)
Field3: NAME (VARCHAR)

每当我插入一行时，我都希望获取ID 。有办法吗？（我使用的是VB.Net）

编辑： 使用SELECT @@ IDENTITY

的解决方案

'Execute insert statement and return identity (autoincrement ID field)
Public Function executeInsertGetIdentity(ByVal insertStatement As String) As Integer
    ' Execute insert
    Dim myOleDbCommand As OleDbCommand
    myOleDbCommand = New OleDbCommand(insertStatement, connection)
    If myOleDbCommand.ExecuteNonQuery() < 1 Then Return 0
    ' Return identity
    Dim myOleDbCommand2 As OleDbCommand
    myOleDbCommand2 = New OleDbCommand("SELECT @@IDENTITY", connection)
    Dim myOleDbDataReader As OleDbDataReader = myOleDbCommand.ExecuteReader()
    myOleDbDataReader.Read()
    executeInsertGetIdentity = myOleDbDataReader.Item(0).ToString()
    myOleDbDataReader.Close()
End Function

Answer 1

您可以逐步使用@@ Identity，HOW TO: Retrieve the Identity Value While Inserting Records into Access Database By Using Visual Basic .NET

访问 - 在插入期间获取计数器（自动增量主键）

1 个答案: